Hi,

I serached the forum but I couldn't find an answer to this.
I'm a newbie and I'm trying to load some random images at the center of the screen in full screen mode.
I got it working with some math but there's some method I can use to make the sketch cleaner?
I mean something like imageMode (CENTER)...

Here's my code...

1. PImage img;
2. boolean sketchFullScreen() {
3.   return true;
4. }
5. void setup () {
6.   size (displayWidth, displayHeight);
7. }
8. void draw () {
9.   frameRate (25);
10.   if (mousePressed) {
11.     int i = int (random (1, 10));
12.     String imageName = (i + ".jpg");
13.     img = loadImage (imageName);
14.     // display the image to the center of the screen
15.     int x, y;
16.     x = img.width;
17.     y = img.height;
18.     int sx, sy;
19.     sx = displayWidth;
20.     sy = displayHeight;
21.     int centerX = (sx - x) / 2;
22.     int centerY = (sy - y) / 2;
23.     image (img, centerX, centerY);
24.   }
25.   else {
26.     background (255, 0, 0);
27.   }
28. }

Hi,
I'm trying to make a simple class working. A 1px rectangle should be drwan at the center of the sketch but it starts from 0, 0. What's wrong with my code?

1. class Drunkrect {
2.   int x;
3.   int y;
4.  
5.   Drunkrect () {
6.    x = width / 2;
7.    y = height / 2;
8.   }
9.   void display() {
10.     fill (0);
11.     rect (x, y, 1, 1);
12.   }
13.   void step() {
14.     int choice = int (random (4));
15.    
16.     if (choice == 0) {
17.       x++;
18.     }
19.     else if (choice == 1) {
20.       x--;
21.     }
22.     else if (choice == 2) {
23.       y++;
24.     }
25.     else if (choice == 3) {
26.       y--;
27.     }
28.   }
29. }
30. Drunkrect w = new Drunkrect();
31. void setup () {
32.   size (800, 800);
33.     background (255);
34. }
35. void draw () {
36.   w.display();
37.   w.step();
38. }

Hi,
I'm new to processing and programming and I'm reading "Programming interactivity" by Joshua Noble.
There's something I did not understand completely about public and private methods in a class.
Public methods can be accessed outside the class, private methods can only be accessed within the class so if I tried to call a private method outside the class I should get an error. Is that right?

So why if I call my private method dream() outside the class I do not get any error? Here's my code:

1. class Dog {
2.   String name;
3.   int age;
4.   int weight;
5.   Dog () {
6.     age = 1;
7.     weight = 20;
8.   }
9.   public void giveDogAName (String _name) {
10.     name = _name;
11.   }
12.   public void bark() {
13.    println (name + " " + "says: wof wof");
14.   }
15.   public void sleep () {
16.     print (name + " " + "is dreaming" + " ");
17.         dream ("a bone");
18.   }
19.   private void dream (String dogDream) {
20.     println (dogDream);
21.   }
22. }
23. void setup () {
24.   Dog redolf = new Dog ();
25.   redolf.giveDogAName ("redolf");
26.   redolf.bark();
27.   redolf.sleep();
28.   redolf.dream ("a flower");
29. }

Thanks